body{
    margin: 0;
    background-color: #f5f5f5;
    font-family: '微软雅黑';
    font-size: 4vw;
}

header{
    width: 100%;
    height: 12vh;
    background-color: #F37D0F;
    background-image: url(../user/images/header_bg.png);
    background-size: 100% 100%;
}
header nav{
    line-height: 12vh;
    padding: 2vh 4vw;
}
a{
    display: inline-block;
    text-decoration: none;
    color: #fff;
}
.login{
    height: 8vh;
    display: flex;
    justify-content: flex-start;
}
.login img{
    height: 100%;
}
.login div{
    height: 100%;
    padding-left: 3vw;
    display: flex;
    align-items: center;
}
/*菜单*/
.mainLine{
    width: 100%;
    height: 14vw;
    background-color: #fff;
    color: #000;
    padding:4vw;
    box-sizing: border-box;

    display: flex;
    justify-content: space-between;
    align-items: center;
}
.mainLine img{
    height: 6vw;
}
.mainLine span{
    font-size: 3.5vw;
    color: #666;
    display: inline-block;
    position: relative;
    top: -1.5vw;
}
.menu{
    height: 20vw;
    justify-content: space-around;
}
.menu>a{
    text-align: center;
}

.menu>a>div{
    font-size: 3.5vw;
    color: #000;
}
.menuf{
    font-size: 4vw;
    color: #666;
}
.marginBottom{
    margin-bottom: 0.5vw;
}
.marginBtm{
    margin-bottom: 2vw;
}


.userChecked{
    background-position: 0 57%;
}